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Electrical Power-Hardware-In-The-Loop simulation for the early validation of power amplifiers used in Active Vibration Control

: Millitzer, Jonathan; Ranisch, Christopher; Kloepfer, Jannes


Melzer, T.:
Smarte Strukturen und Systeme : Tagungsband des 4SMARTS Symposiums vom 6. - 7. April 2016, Darmstadt
Berlin: De Gruyter, 2016
ISBN: 978-3-11-046713-0 (Print)
ISBN: 978-3-11-046924-0
ISBN: 978-3-11-046734-5
ISBN: 3-11-046713-5
ISBN: 978-3-11-046925-7
Symposium für Smarte Strukturen und Systeme (4Smarts) <2016, Darmstadt>
Fraunhofer LBF ()
Smarte Strukturen; Power-Hardware-In-The-Loop; active vibration control

Early stage Hardware-In-The-Loop (HIL) testing is becoming an increasingly important tool during the development of complex and highly interacting mechatronic systems. In the case of a power amplifier under test, an early HIL investigation allows for an evaluation of the required electrical power, the suitability of the power amplifier to drive a variety of different actuators and an investigation of defined fault states. In this paper, we highlight the development of an electrical Power-HIL interface for the test of a power amplifier for an electrodynamic voice coil actuator.
In this context, the electrical Power-HIL interface represents a voltage controlled current source which is realized by means of a current controlled MOSFET H-bridge amplifier. The bidirectional load current in the test power amplifier is adjusted as a function of its driving voltage and a higher-level real-time simulation process. The real-time simulation includes a numerical simulation model of the electrodynamic voice coil actuator and an attached mechanical structure.
This paper presents the derivation of general design parameters for an electrical Power-HIL interface from a preliminary numerical investigation and the results of initial tests with a common audio amplifier attached to the electrical Power-HIL interface.